Update wireshark.md

added information on how to generate pcaps on windows based computers.

docs/development/wireshark.md

@@ -37,6 +37,13 @@ To tell the CFLIB to generate a PCAP file of what it thinks the CRTP traffic loo
 $ CRTP_PCAP_LOG=filename.pcap python3 examples/swarm/hl-commander-swarm.py
 $ wireshark filename.pcap
 ```
+and on Windows based computers in a shell window:
+
+```bash
+> set CRTP_PCAP_LOG=filename.pcap
+> python3 examples/swarm/hl-commander-swarm.py
+> wireshark filename.pcap
+```
 To generate a PCAP file and open it with Wireshark. You can also use the text based `tshark` tool, and you can add a filter, for instance, only shoow CRTP port 8 (Highlevel setpoint):
 
 ```bash